78731020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{40583}}^1$

素因数の和:40689

約数の個数: 24

約数和(自身を含む): 167043744

約数和(自身を除く): 88312724

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 40583, 81166, 162332, 202915, 405830, 811660, 3936551, 7873102, 15746204, 19682755, 39365510, 78731020]

約数ペア:

[(1, 78731020), (2, 39365510), (4, 19682755), (5, 15746204), (10, 7873102), (20, 3936551), (97, 811660), (194, 405830), (388, 202915), (485, 162332), (970, 81166), (1940, 40583)]